OBJECT D, 49398

Orbit data source: Space-Track

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Recently launched and/or uncataloged satellites may have evolving metadata. Metadata may include but not limited to: Owner, Maufacturer, Bus, Motor, and Mission.

OBJECT D, 49398 is a Japanese satellite in SSO that was launched on Tue, 09 Nov 2021 UTC via an EPSILON launch vehicle from the Kagoshima Space Center University Of Tokyo (KSCUT). Unknown objects in Earth's orbit typically refer to objects detected orbiting the Earth but have not yet been identified or cataloged. These objects could be anything from previously untracked satellites, spent rocket stages, debris from satellite collisions, or even natural meteoroids temporarily captured by Earth's gravity.

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Identifier
49398, 2021-102D
Orbit
SSO
Last TLE update
20 hours ago
Origin
Manufacturer
VNSC/MEISEI
Mission
Non-operational Civil Com/Tech
Bus & Motor
CUBESAT 3U, Unknown motor
Mass
4 kg wet, 4 kg dry
Launch date (UTC)
2021-11-09 (3 years ago)
Launch vehicle
EPSILON
Launch site
Kagoshima Space Center University Of Tokyo (KSCUT)
Object type
Unknown
Shape & HBR
Box + 1 Ant, 7 m
Radar Cross Section
0.281 m², Small (<0.1 m²)

Expand to show TLE details & history

TLE from 20 hours ago
0 OBJECT D
1 49398U 21102D   25118.65243582  .00013851  00000-0  62672-3 0  9995
2 49398  97.3754 163.0255 0010048 219.5783 140.4720 15.20974065190827
Epoch: 2025-04-28T15:39Z
Definitive object data (Epoch: 2025-04-28T15:39:30.454Z)
Latitude
-0.00005°
Longitude
71.28523°
Altitude
511.331 km
Speed
7.605 km/s
True Right ascension
10h 52m 06s
True Declination
0° 00' 00"
Sunlit
Object was in full shadow at TLE epoch
Visualization TLE readout
Latitude
-65.03312°
Longitude
88.16095°
Altitude
526.124 km
Speed
7.6 km/s
Apparent Right ascension
09h 02m 26s
Apparent Declination
-57° 35' 03"
Sunlit
Object is in full shadow
Visualization observer readout
Local Sidereal Time
19:24:00
Azimuth
213.7° SW
Elevation
-66.274°
Doppler factor
1
Orbital elements
Apogee altitude
506.775 km
Perigee altitude
492.953 km
Semi-major axis
6,878.001 km
Eccentricity
0.0010048
Inclination
97.3754°
RAAN
163.0255°
Arg. of periapsis
219.5783°
True anomaly
140.54521°
Mean anomaly
140.472°
Eccentric anomaly
140.50861°
Mean motion
3.80496 °/min
BSTAR
0.00062672
Orbital period
94.61 mins
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OBJECT D Visibility forecast

Observer location: undefined°, undefined°

Span
Click to sort rows by Start time (UTC) header in descending order
Start Az.
Max El. time (UTC)
Max El. Az.
Max El.
End time (UTC)
End Az.
7 mins2025-04-29 15:53:41.760Z7.289° NNE2025-04-29 15:57:41.760Z231.868° WSW41.324°2025-04-29 16:00:41.760Z199.97° SSW
5 mins2025-04-30 02:32:41.760Z130.101° SE2025-04-30 02:34:41.760Z69.684° E32.707°2025-04-30 02:37:41.760Z5.81° NNE
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